Signaling system for railways



J. R. YOUNIE. SIGNALING SYSTEM FOR RAILWAYS.

APPLICATION men APR.15, 1920.

Patented Oct. 10, 1922.

2 SH EETSSHEET 1.

Un v- J. R. YOUNIE.

SIGNALING SYSTEM FOR RAILWAYS. I

ARPUCATION FILED APR.15, 1920.

1,431,351. Patented Oct. 10, 1922.

Patente Uct. 10, 1922.

ian

.iorriv ROYYOUNIE; or I-IOWICK, QUEBEC, CANADA.

SIGNALING SYSTEM FOR RAILWAYS;

Application filed April 15, 1920. Serial No. 374,151."

To all 2071 0972 it may concern:

Be it known that I, JOHN YoUNm, a subject of the King of Great Britain, residing at Howick, in the Province of Quebec, Canada, have invented certain new and useful Improvements in Signaling Systems for Railways; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention has relation to an electric signaling system, and more particularly to an audible system designed to prevent trains on single or double track railv roads from coming into a collision and which may be used in connection with a semaphore or any visiblesystein.

The ob ects of the invention are, first to provide a system in which, the line compris-. mg a block, is magnetized for a time suflicient to enable a train to reach the next block in safety, and secondly, to actuate a receiving instrument on the train entering or leaving a block, to audibly indicate to the engineer the presence of another train in the block.

A further object of the invention is to provide means whereby the engineer of one train may signal to the engineer of an approaching train of his presence in the block or in which the engineer of one train may ascertain if the block is entirely clear.

Another object is to provide an automatically timed transmitting mechanism, whereby the line may be demagnetized upon the passage of the train from out of the block.

With the above and other objects in view which will hereinafter appear as the description continues, the invention consists of the novel features ofconstruction, combination and formation of parts-aswillbe hereinafter more fully described and particularly pointed out in the appended claims.

In the accompanying drawings has been shown a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural details herein exhibited, but the right is hereby reserved to any changes, alterations or modifications to which recourse may be had that come within the scope of the claims without departing from the spirit of the invention or sacrificing the efliciency of the same.

In the accompanying drawings Figure 1 is" a perspective view of a portion of a railroad track, showing the main line wire, contacts and operating lever or contact member;

Figure 2 is an elevational view of the contacts for the operation of two blocks;

Figure 3 is a plan view of aportion of a railroad track, showing. two sections, the main line wire between the same, the contact wiresand the transmitter;

Figure 4 is a detail view of one of the contact members; 7

Figure 5 is a side elevational view of a locomotive with a portion broken away to show the receiver;

Figure 6 is a sectional view of the automatic timed transmitter in inoperative position; I l Figure 7 is a similar view of the transmitter with the circuit to the line closed;

F igure 8 is a plan sectional view of the automatic timed transmitter; and,

Figure 9 is a plan view'of one of the contact members.

Referring to the figures by numerals of reference, the numerals l and 2 designate the two rails of a railway track and in this instance illustrating a single track system and 3 the main line wire properly connected with the source of electrical supply, so that a currentwill pass therethrough, from one block to another.

The stations larelocated at predetermined points, but preferably at the end of two or more blocks, or sections, wherein are located the section-circuit batteries, not illustrated.

, The main line wire connects thevarious section-circuitbatteries along the line and a. pluralityof contact membersG are'hingedly mounted on the posts 7 contiguous to the rail 1 atthe tion, V

These contact members 6 are spaced apart quite a distance and are connected to the main line wire 3 by the circuit Wires 7.

A detent member 8 is mounted on a shaft 9 and is normally disposed in vertical plane contiguous to rail 1 forwardly of the contact members 6. The inner end of shaft 9 is mounted in the side Walls of the transmitter casing 10 and carries a pulley 11 and gear wheel 12. A clock mechanism 13 is located within the casing 10 and the main drive entranceof each block or secshaft 14: carries a gear 15. This pulley 11 has secured thereto a pin 16 and a weight 17 is suspended from pulley 11 by the cable 18. A chain 19 is trained over the gears 12 and 14, through which motion is transmitted from the clock mechanism to the pulley. Within the box a gear 31 is mounted on a shaft 14, beneath which is a fixed shaft 82 carrying a loose gear 33 meshing with gear 31. A spring 3 1 is wound around the shaft 32, having one end secured to the face of the gear 33 and the other end secured to an adjustable lock nut at the other end of: said shaft. The spring normally causes the weight 1.7 to be raised to the height shown in Figure 3 and is so tensioned as to raise the weight, after it has been lowered, in a predetermined length of time. A battery 20 is housed in the casing 10 and a lead wire 21 is'connected to the contact plate 22, while another contact plate 23 is normally held out of engagement with plate 22 by means of the pin 16. This contact plate 23 is connected to the wire 27.

l/Vhen the locomotive enters the block or section an attachment mounted thereon will engage the detent member 8, causing shaft 9 to revolve, thereby actuating pulley 11 carrying pin 16, and the pulley 11 will be carried to the position illustrated in Figure 7 in whichposition pin 16 will be out of en gagement with the contact plate 23, allowing the same to descend and make contact with the lower contact plate 22, thereby completing the circuit with the main line wire 3 through the wire 27. In this manner, as the main line circuit wire 3 is energized, it will in turn energize the circuit wires 7 connected to the contact members 6.

The locomotive of an opposing train entering the block or section carries a contact member 28 which engages the successive contact members 6 which latter have been energized from the main line wire 3 and wires 7' in the manner stated. The locomotive also carries a wire 36 passing from the contact 28 through the cab and to the ground. A bell 37 disposed in the cab is in series with the wire. As this line 3 is energized when the first engine has passed the detent member 8, the second engine will engage a number of similar contact members 6 connected to the main line wire 3 by the wires 40 and accordingly the circuit will be completed through the battery, the line 3, the wire 40, the contact 6, the contact 28, the bell 27, the ground, and back to the battery. hen this circuit is made, a solenoid controlling a bell in the cabs or" the engines will be energized; thereby the engineers, as the locomotives proceed, will be given audible signals that the block or section is occupied.

It is obvious that any number of contact members, 6, may be used and likewise a suitable number of automatic transmitters comprising the clock mechanism may be positioned along the railroad to make and break the circuit in the main line wire 3.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In an automatic signal system for railways, the combination of a track, a vehicle on said track, a signal on said vehicle, a line wire adjacent said track, a source oi current for said line wire, a pair of contacts for connecting the line wire with said source of current, a pulley mounted for rotation in proximity to said contacts, a pin secured to said pulley and adapted normally to hold one of said contacts spaced from the other, means connected to said pulley and operable by a passing frame for bringing the pin out or engagement with the first named contact, a timing mechanism for returning the pin to its normal position, and means near the other end of said track, operable by the first named vehicle, for completing a circuit through said line wire and signal.

2. An automatic signal system :for railways comprising in combination with a track, a pair of contacts adjacent said track, a pulley mounted for rotation in proximity to said contacts, a pin secured to said pulley and adapted normally to hold-one of said contacts spaced from the other, means connected to said pulley and operable by a passing train for bringing the pin out oi engagement with the first named contact, and a timing mechanism for returning the pin to its normal position after a predetermined length of time.

In witness whereof I have hereunto set my hand.

' JOHN ROY YOUNIE. Witnesses:

WALLACE R. YoUNm, J. ROY CAMERON. 

